Population vs. Sample (Example 1) In 2017 the Gallup poll surveyed 1021 adults in the United States and found that 57 % supported a ban on smoking in public places. a. Identify the population and the sample. b. What is the parameter of interest? What is the statistic?

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 7, Problem 1SE

Population vs. Sample (Example 1) In 2017 the Gallup poll surveyed 1021 adults in the United States and found that 57 % supported a ban on smoking in public places.

a. Identify the population and the sample.

b. What is the parameter of interest? What is the statistic?

a.

Expert Solution

To determine

Determine the population and the sample.

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

b .

Expert Solution

To determine

Determine the parameter of interest and statistic.

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

01:48

Students have asked these similar questions

Suppose that you want to estimate the mean monthly gross income of all households in your local community. You decide to estimate this population parameter by calling 150 randomly selected residents and asking each individual to report the household’s monthly income. Assume that you use the local phone directory as the frame in selecting the households to be included in your sample. What are some possible sources of error that might arise in your effort to estimate the population mean?

For the distribution shown, match the letter to the measure of central tendency. A B C C Drag each of the letters into the appropriate measure of central tendency. Mean C Median A Mode B

A physician who has a group of 38 female patients aged 18 to 24 on a special diet wishes to estimate the effect of the diet on total serum cholesterol. For this group, their average serum cholesterol is 188.4 (measured in mg/100mL). Suppose that the total serum cholesterol measurements are normally distributed with standard deviation of 40.7. (a) Find a 95% confidence interval of the mean serum cholesterol of patients on the special diet.

Answer 2

Textbook Question

Chapter 7, Problem 1SE

Population vs. Sample (Example 1) In 2017 the Gallup poll surveyed 1021 adults in the United States and found that 57 % supported a ban on smoking in public places.

a. Identify the population and the sample.

b. What is the parameter of interest? What is the statistic?

a.

Expert Solution

To determine

Determine the population and the sample.

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

b .

Expert Solution

To determine

Determine the parameter of interest and statistic.

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

01:48

Answer 3

Textbook Question

Chapter 7, Problem 1SE

Population vs. Sample (Example 1) In 2017 the Gallup poll surveyed 1021 adults in the United States and found that 57 % supported a ban on smoking in public places.

a. Identify the population and the sample.

b. What is the parameter of interest? What is the statistic?

a.

Expert Solution

To determine

Determine the population and the sample.

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

b .

Expert Solution

To determine

Determine the parameter of interest and statistic.

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

01:48

Answer 4

Textbook Question

Chapter 7, Problem 1SE

Population vs. Sample (Example 1) In 2017 the Gallup poll surveyed 1021 adults in the United States and found that 57 % supported a ban on smoking in public places.

a. Identify the population and the sample.

b. What is the parameter of interest? What is the statistic?

a.

Expert Solution

To determine

Determine the population and the sample.

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

b .

Expert Solution

To determine

Determine the parameter of interest and statistic.

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

01:48

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

a.

Expert Solution

To determine

Determine the population and the sample.

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

b .

Expert Solution

To determine

Determine the parameter of interest and statistic.

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.

Answer 8

a.

Expert Solution

To determine

Determine the population and the sample.

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

Answer 9

a.

Expert Solution

Answer 10

a.

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

Determine the population and the sample.

Answer 13

Answer to Problem 1SE

Population comprises all adults in the U.S., whereas the sample is the 1021 adults surveyed.

Answer 14

Explanation of Solution

The Gallup poll surveyed 1021 adults of the United States in 2017 and found that 57% of them were in favor of a ban on smoking in public places.

A population is a group of objects or people that the researcher wants to study. In the given case, the researcher wants to study the adults’ reaction in the U.S towards the ban on smoking in public places. Hence, the population of the study is ‘all the adults living in the United States’.

A sample is a collection of people or objects taken from the population of interest. As the population of the U.S. is too vast to study, a sample of 1021 adults are surveyed. Hence, the sample of the study is ‘1021 adults surveyed in the U.S’.

Answer 15

b .

Expert Solution

To determine

Determine the parameter of interest and statistic.

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.

Answer 16

b .

Expert Solution

Answer 17

b .

Expert Solution

Answer 18

Expert Solution

Answer 19

To determine

Determine the parameter of interest and statistic.

Answer 20

Answer to Problem 1SE

The parameter of interest is the percentage of all U.S. adults who are supporting the ban on smoking in public places, whereas the statistic is the 57% of adults in the sample who are in favor of the ban.

Answer 21

Explanation of Solution

Parameter of interest is a numerical value that characterizes some aspect of the population. Here, the researcher wishes to know the proportion of adults in favor of the ban on smoking in public places in the United States. Thus, the parameter of interest is the proportion of all adults in the U.S. who are in favor of the ban on smoking in public places.

Statistic is a numerical characteristic of a sample of data, which is used to estimate the parameters. In this case, the percentage of adults in the sample who are supporting the ban of smoking in public places, that is 57%, is the statistic.